19865940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331099}}^1$

素因数の和:331111

約数の個数: 24

約数和(自身を含む): 55624800

約数和(自身を除く): 35758860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331099, 662198, 993297, 1324396, 1655495, 1986594, 3310990, 3973188, 4966485, 6621980, 9932970, 19865940]

約数ペア:

[(1, 19865940), (2, 9932970), (3, 6621980), (4, 4966485), (5, 3973188), (6, 3310990), (10, 1986594), (12, 1655495), (15, 1324396), (20, 993297), (30, 662198), (60, 331099)]